1. Announcement:
    Want access to a chatbox?
    Dason ‎(Devorador de queso)
    05-10-2017
    Views:
    1,895
+ Post New Thread
Page 1 of 91 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 51 ... LastLast
Threads 1 to 60 of 5451

Forum: Probability

Probability course and homework discussion. Probability distributions. Probability theory, stochastic processes

  1. Arrow Sticky Thread Sticky: We only provide homework help to those who show effort

    Welcome to Talk Stats Forum. In order to keep homework help effective and efficient, we request all members to abide by these guidelines: 1)...

    Started by quark‎, 09-30-2005 09:44 AM
    • Replies: 0
    • Views: 30,343
    09-30-2005, 09:44 AM Go to last post
  1. Moved: Data Entry

    Started by Matthew18342‎, 02-15-2013 01:15 PM
    • Replies: -
    • Views: -
    02-15-2013, 01:22 PM Go to last post
  2. Moved: Help, and I have no statistical background.

    I am taking a course in safety and now have one class left, but ran into a big problem. This class has statistics and I don't have a clue. The text...

    Started by double‎, 12-25-2006 09:46 PM
    • Replies: -
    • Views: -
    03-01-2006, 01:08 PM Go to last post
  3. Question Tires Probability Question

    Question: You recently bought a new set of four tires from a manufacturer who just announced a recall because 2% of that particular brand of tires...

    Started by Koshilia‎, 10-19-2017 09:05 PM
    probability
    • Replies: 1
    • Views: 90
    10-19-2017, 09:36 PM Go to last post
  4. Ranking products according to their price and probability of sale

    Hello! I have little knowledge of statistics/probability theory, so please bear with me. I was wondering about the following: I have a bunch...

    Started by salt‎, 09-27-2017 08:57 AM
    • Replies: 0
    • Views: 111
    09-27-2017, 08:57 AM Go to last post
  5. multiplication rule with two random events?

    Exercise from mathint.com: "The probability that a student passes Mathematics is 2/3 and the probability that he passes English is 4/9 . If the...

    Started by bagocs‎, 10-03-2017 04:44 PM
    • Replies: 1
    • Views: 114
    10-06-2017, 03:41 PM Go to last post
  6. Measuring strentgh of competing teams

    The average number of goals scored per match by Team A when playing on home ground is 2.2 with a standard deviation of 1.3 while the average number...

    Started by Onditi‎, 10-10-2017 10:53 AM
    • Replies: 0
    • Views: 130
    10-10-2017, 10:53 AM Go to last post
  7. 10x 1/100

    Hi all, Apologizes for the easy question: Imagine a dangerous mountain where the chance of dying is 1%. If a group of 10 hikes the moutain,...

    Started by STAlexis‎, 09-30-2017 08:58 PM
    • Replies: 1
    • Views: 146
    10-01-2017, 02:07 AM Go to last post
  8. probobility of a tax inspecton

    From our statistics the probability of getting an inspection in any single week is a pprox 1,000 : 1 I was trying to work out the probability...

    Started by censura‎, 09-27-2017 06:40 PM
    • Replies: 1
    • Views: 151
    09-27-2017, 06:52 PM Go to last post
  9. determining the most probable permutation of a set

    Is there any way to determine the most probable permutation of any given set? For example, given the set of letters SKTANH, is there a way to compute...

    Started by bonbonbaron‎, 09-30-2017 09:54 AM
    permutation, recurrent neural network, sequence
    • Replies: 2
    • Views: 165
    09-30-2017, 02:37 PM Go to last post
  10. Sales Probability

    First post on this forum so I hope to explain my question appropriately. Our company issues catalogs to 3,000 customers. The products in this...

    Started by johnnyg‎, 09-29-2017 09:01 AM
    • Replies: 0
    • Views: 168
    09-29-2017, 09:01 AM Go to last post
  11. Probability summation help

    I have the following problem: Two cups, A and B, each contain 1 ml of the same infectious serum. If there is a 30% probability that I will get the...

    Started by fc63124‎, 10-07-2017 02:51 PM
    • Replies: 2
    • Views: 168
    10-07-2017, 04:41 PM Go to last post
  12. Proof help plz

    I took the introduction of probability four years ago and I really can't remember how to solve this. Is there any hint on how should I start?...

    Started by nervedbaby‎, 10-12-2017 10:27 AM
    • Replies: 1
    • Views: 174
    10-13-2017, 03:19 AM Go to last post
  13. Conditional probability problem

    Given P(A1) = .12, P(A2) = .07, P(A3) = .05, P(A1 U A2) = .13, P(A1 U A3) = .14, P(A2 U A3) = .10, and P(A1 A2 A3) = .01 What is the probability...

    Started by hankhopkins13‎, 10-07-2017 03:34 PM
    • Replies: 1
    • Views: 182
    10-08-2017, 05:21 AM Go to last post
  14. Understanding independent events.

    There is a problem I do not understand: Government data show that 8% of adults are full-time college students and that 30% of adults are age 55 or...

    Started by barryjo‎, 10-20-2017 08:58 AM
    • Replies: 1
    • Views: 186
    10-20-2017, 09:02 AM Go to last post
  15. Combining two sources of uncertainty

    I will use an imperfect dice for simplicity. Let's assume there are two factors that influence the probability of the results obtained from throwing...

    Started by BIal‎, 10-08-2017 09:24 AM
    distribution, probability
    • Replies: 2
    • Views: 194
    10-08-2017, 03:51 PM Go to last post
  16. What is the probability a particular sequence of 6 letters appearing in 13?

    What is the statistical probability a particular set of 6 letters appearing in a 13 alpha-numerical sequence in the case of: ...

    Started by Mark2015‎, 09-23-2017 04:25 AM
    • Replies: 1
    • Views: 202
    09-23-2017, 08:20 PM Go to last post
  17. Probability HW help

    I need help with these problems. I worked them out, got answers, and checked the back of the book to see if I got them correct. A pair of...

    Started by evzquz‎, 10-02-2017 05:03 PM
    dice, homework, probability, statistic
    • Replies: 1
    • Views: 220
    10-03-2017, 12:14 AM Go to last post
  18. Determine probabilty of a sampled value being <= 40

    Hi all! Brand new poster here, trying to think back to those stats classes that I hated at the time, but now seem fascinating. Ahhhh to be 18 again...

    Started by LogisticsG‎, 09-27-2017 07:08 PM
    • Replies: 2
    • Views: 237
    09-28-2017, 12:14 PM Go to last post
  19. Infinite summation outcome

    I'm awful with infinite summations! No idea how they did the last step in the proof in the attached image. Can anyone help me figure it out? And in...

    Started by jomak73‎, 09-30-2017 11:42 AM
    • Replies: 3
    • Views: 241
    10-07-2017, 07:08 PM Go to last post
  20. Question Help with what a question is asking

    I know how to calculate probabilities, but I want to make sure that I am understanding the question. "What is the probability that the Dow Jones...

    Started by Krazzy2013‎, 09-26-2017 08:40 AM
    clarification, probability, question
    • Replies: 4
    • Views: 242
    09-26-2017, 12:00 PM Go to last post
  21. How many paths exist, probability, etc.

    Thanks for helping. I am taking an online course. Normally I would post my attempt...but I seriously do not know how to start this problem. I am...

    Started by DanielB33‎, 10-01-2017 10:30 AM
    • Replies: 1
    • Views: 242
    10-02-2017, 08:07 PM Go to last post
  22. Lightbulb I tried to calculate a probability problem..pls review my try?

    I will be straight and simple on explanation: Abstract: I was playing bingo in a mobile game with my friend, and I wondered, "what is the...

    Started by enoch53‎, 10-13-2017 01:30 PM
    bingo statistics, combination, probabilities
    • Replies: 4
    • Views: 252
    10-14-2017, 02:18 AM Go to last post
  23. Simple Set THeory/Probability Problem

    Hello all, I'm very new to statistics as well as this forum, so please bear with me. I've tried solving this for about 30 minutes now and I've...

    Started by crk05‎, 09-19-2017 11:29 PM
    beginner, probability, set theory
    • Replies: 4
    • Views: 253
    09-20-2017, 02:16 PM Go to last post
  24. a fair gambling game

    You want to invent a gambling game in which a person rolls two (unbiased) dice and is paid some money if the sum is 7, but otherwise he loses his...

    Started by majda‎, 08-06-2017 05:22 AM
    • Replies: 1
    • Views: 373
    08-06-2017, 05:37 AM Go to last post
  25. calculate intersection sets of cell clones in samples?

    Is it possible to calculate the probability of intersection sets in this setting? I have 44000 different cell clones in sample O, I donīt know how...

    Started by Rike133‎, 07-27-2017 06:58 AM
    • Replies: 0
    • Views: 381
    07-27-2017, 06:58 AM Go to last post
  26. Prob of high risk loans defauting, student text question

    Hi, first of all thanks for reading this. I'm 47 and trying to teach myself Stats from an excellent textbook as part of my course in maths and...

    Started by Koyunbaba‎, 08-03-2017 04:02 AM
    • Replies: 3
    • Views: 383
    08-03-2017, 04:29 PM Go to last post
  27. get number of participants from given probability

    Hi! I have a pool of participants - defined number of tournaments (competitions) - defined participants per tournament (partPerTour) Of...

    Started by Pir‎, 07-26-2017 07:08 AM
    • Replies: 1
    • Views: 460
    07-26-2017, 06:09 PM Go to last post
  28. Exclamation Probability of H/T Score AND F/T Score Being Specific Scores...

    Hi All, Just trying to answer something in my mind... If I had calculated (using poisson) the chances of various scores occurring in a football...

    Started by SMITH1988CJ‎, 05-30-2017 05:01 PM
    probability
    • Replies: 0
    • Views: 514
    05-30-2017, 05:01 PM Go to last post
  29. Negative Binomial Distribution for Variable Probabilities

    Hi, I wonder if someone can help me. I'm looking to estimate the probability of player a v player b winning a darts match where the player who...

    Started by jazzfish‎, 09-05-2017 10:51 AM
    • Replies: 8
    • Views: 551
    09-06-2017, 05:45 AM Go to last post
  30. Kruskal Walis & Wilcoxon test

    Hi all, it would be so kind if someone could explain to me as to why both equations, Kruskal Walis and Wilcoxon, consists of the number 12? The...

    Started by yuyanc‎, 08-11-2017 01:19 PM
    • Replies: 1
    • Views: 568
    08-11-2017, 02:01 PM Go to last post
  31. Post urgent question on the mode, median, variance and mean

    We roll two (unbiased) dice and let X and Y be the two numbers that appear. Find the mode, the median, the expectation, and the standard deviation...

    Started by majda‎, 08-06-2017 06:36 AM
    • Replies: 1
    • Views: 571
    08-07-2017, 02:53 AM Go to last post
  32. Distribution of Data

    Hello forum members, I wonder if someone can kindly help. I have a dataset which I've uploaded and I'm trying to work out a sensible distribution....

    Started by jazzfish‎, 09-19-2017 05:33 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 629
    09-24-2017, 11:59 AM Go to last post
  33. Card Probability Problems

    Scenario: If you have a standard deck of 52 cards and you draw 2 of those cards without replacement, what is the probability of: 1) P(getting a...

    Started by SausageWater‎, 06-09-2017 05:58 PM
    • Replies: 1
    • Views: 698
    06-15-2017, 04:59 PM Go to last post
  34. decile

    hi experts. I 'd like to ask about cluster analysis. to identify the group of customer that which group will have high potential to cancel the...

    Started by Kimudao‎, 05-27-2017 11:34 PM
    • Replies: 0
    • Views: 702
    05-27-2017, 11:34 PM Go to last post
  35. Is the order of an event occurs in a sequences of events random?

    I am interested in knowing how to analyse whether the order in which an event occurs within a sequence of events is random; i.e. is the likelihood of...

    Started by Jack Thorley‎, 05-25-2016 06:20 AM
    permutation test, randomisation, sequence data
    • Replies: 0
    • Views: 710
    05-25-2016, 06:20 AM Go to last post
  36. Essay Grouping Problem

    if i have 8 essay topics (a,b,c,d,w,x,y,z) and they will be randomly grouped into 2 groups of 4, what is the probability of getting group (a,b,c,d)?...

    Started by probabilityhelpneeded‎, 06-04-2017 12:26 PM
    • Replies: 1
    • Views: 728
    06-08-2017, 10:29 PM Go to last post
  37. A Puzzling Probability Problem

    Hello everyone. I have encountered these problems. I tried to answer them, but I'm not sure if they are correct.:: I would be very grateful if...

    Started by Gelo‎, 07-08-2017 12:13 PM
    • Replies: 4
    • Views: 765
    07-09-2017, 04:15 AM Go to last post
  38. Unhappy Help in understand this formula

    Hello to all, I'm working on a problem which is as follow: There is a buffer which has maximum K capacity to store items. When a request for an...

    Started by aram_2‎, 08-03-2012 05:12 AM
    • Replies: 1
    • Views: 776
    08-03-2012, 10:20 AM Go to last post
  39. Smile Hypothetical example of using probability to control emotions in business

    Imagine a company where there are two principals. The first person is the founder and owner of the company. The second person is nearly a partner...

    Started by jwoods76‎, 04-16-2017 05:23 PM
    • Replies: 0
    • Views: 786
    04-16-2017, 05:23 PM Go to last post
  40. Interpretation of likelihood ratio and hypothesis testing

    Even after extensive search, am unclear on some (basic) concepts regarding likelihood vs. frequentist approach in hypothesis testing. Can you...

    Started by natajax‎, 06-02-2016 03:08 AM
    likelihood, likelihood ratio
    • Replies: 0
    • Views: 790
    06-02-2016, 03:08 AM Go to last post
  41. two-sample Kolmogorov-Smirnov test

    Hello, Hello, I have recorded some discrete data with an unspecified distribution. I have generated some discrete data from a model. I'm...

    Started by bradyj2‎, 02-08-2013 08:54 AM
    • Replies: 0
    • Views: 795
    02-08-2013, 08:54 AM Go to last post
  42. Not Statistically Significant.... or is it?

    I am comparing 2 groups to see if there are differences in GPA across 4 years of high school. Group A has a higher mean for all 4 years, BUT... the...

    Started by Stinky‎, 08-31-2017 05:06 PM
    2 Pages
    1 2
    sum of means
    • Replies: 18
    • Views: 795
    09-02-2017, 10:52 AM Go to last post
  43. Help With Potential Textbook Error

    I'm reading through the statistics chapter in my research methods textbook and think I may have found a mistake. I was hoping someone here could...

    Started by vw2000‎, 02-19-2013 06:06 PM
    • Replies: 5
    • Views: 796
    02-20-2013, 11:15 AM Go to last post
  44. Exclamation Probability of Sampling Error Assistance

    Hello! I am working on a mini project and am stuck on the third question! I think it's how the question is phrased that is throwing me off..? I...

    Started by heidir1224‎, 05-30-2017 11:36 PM
    • Replies: 0
    • Views: 807
    05-30-2017, 11:36 PM Go to last post
  45. Need help to solve Probability question!

    Hi, Need help to solve this probability question! A supplier of company X makes on average 5 defective pieces.The company accepts a sample if...

    Started by Shashank Prasad‎, 06-27-2014 04:14 PM
    • Replies: 0
    • Views: 809
    06-27-2014, 04:14 PM Go to last post
  46. My program TARGETS

    I used a Monte Carlo method of finding probabilities of collisions between a randomly tossed circular block and non-overlapping randomly placed...

    Started by ArtK‎, 06-03-2015 02:42 PM
    • Replies: 0
    • Views: 816
    06-03-2015, 02:42 PM Go to last post
  47. Hypothesis testing - Type I and II error relationship needed

    Hi! Any idea about how to proof the inequality in formula 1 (see attatchment)? Thank you!

    Started by Lauralethia‎, 04-16-2017 06:49 PM
    • Replies: 0
    • Views: 829
    04-16-2017, 06:49 PM Go to last post
  48. Probability of default

    What is the probability of default in 2 years? The probabilit of default year 1= 10% The probability of default year 2 = 10%

    Started by kronofogdn‎, 06-04-2015 02:03 AM
    • Replies: 0
    • Views: 832
    06-04-2015, 02:03 AM Go to last post
  49. How to calculate posterior probabilities (Bayes related, I think)

    I graduated Uni 16 years ago and generally have no problems with the math and stats I need in my life ... until today. I am breeding horses and there...

    Started by stp486‎, 05-26-2017 05:37 PM
    • Replies: 2
    • Views: 837
    05-27-2017, 09:30 PM Go to last post
  50. Greetings Everyone!

    Hello all! New to the forum and very excited to have a place to turn for help. I have two problems I have to do for my stat class, and I feel that...

    Started by fizoster‎, 02-24-2013 07:57 PM
    • Replies: 0
    • Views: 838
    02-24-2013, 07:57 PM Go to last post
  51. Keno problem: last ball doubles the prize.

    Hi, I'm trying to solve this problem, but apparently, Im going in the wrong direction. It's a Keno Game, you choose 15 balls out of 80...

    Started by paulaks‎, 05-20-2013 10:05 PM
    • Replies: 0
    • Views: 844
    05-20-2013, 10:05 PM Go to last post
  52. What is the probability people are forecasting correctly with standard spreadsheets?

    It seems that many people are using standard spreadsheets to forecast, getting correlation coefficients, etc. However I decided I needed to write my...

    Started by Swayseker‎, 08-03-2015 08:38 AM
    forecast error, probability
    • Replies: 0
    • Views: 847
    08-03-2015, 08:38 AM Go to last post
  53. Basic question about notation

    I'm very sorry, perhpas it is a very basic question but I have I doubt about notation: What does it mean this statement?: E(X)=\int xdF, where F...

    Started by wipeout‎, 11-05-2012 02:08 PM
    • Replies: 2
    • Views: 849
    11-11-2012, 10:10 PM Go to last post
  54. lottery tickets, better to buy all for one game or play X number of games

    Im wondering which would be better. Im assuming the following, chance of winning = 10,000 for a particular ticket. So if i bought 10 tickets, the...

    Started by Hans Rudel‎, 08-18-2012 12:47 PM
    probability, tree diagram
    • Replies: 0
    • Views: 851
    08-18-2012, 12:47 PM Go to last post
  55. Two events meeting

    Hello everyone, I have a question regarding two events that take place randomly over a certain time period and meet. A similar problem would be...

    Started by Bbehrouz‎, 09-23-2015 11:09 AM
    probability, probability theory, stochastic
    • Replies: 4
    • Views: 860
    09-23-2015, 12:36 PM Go to last post
  56. What is chance performance cut-off for a 2-part dichotomous response?

    If subjects had to give 2-alternative forced choice responses for a task (Y/N) and then rate the certainty of their response (also 2-alternative...

    Started by ginaj‎, 06-30-2016 04:57 AM
    binomial test, chance level, chance performance
    • Replies: 1
    • Views: 860
    06-30-2016, 02:02 PM Go to last post
  57. Markov limit expectation

    I need to find a limit involving a discrete finite state markov chain with absorbing state. It is given that: q(x,c) = r(x) + \beta E_{c'\lvert...

    Started by JesperHP‎, 05-06-2016 10:43 AM
    • Replies: 0
    • Views: 861
    05-06-2016, 10:43 AM Go to last post
  58. Exclamation Joint Distributions and a 3rd Variable

    I am struggling with this probability problem. Consider the random variables X and Y with joint distribution as given below. X 0 1 ...

    Started by kathharr‎, 04-12-2015 09:25 AM
    • Replies: 1
    • Views: 863
    04-12-2015, 10:53 AM Go to last post
  59. Probability of solder ball inside a sealed package able to cause a failure

    I have a hermetically sealed semiconductor package, NAND. And I have some foreign object debris (FOD), solder balls to be exact, inside this device....

    Started by ChootarLaal‎, 06-04-2015 09:21 AM
    • Replies: 0
    • Views: 863
    06-04-2015, 09:21 AM Go to last post
  60. Probability of having "Best Qualified" applicants in a subset of the entire pool

    Probability of having "Best Qualified" applicants in a subset of the entire pool. I am working on an issue, trying to show whether or not an HR...

    Started by Smangold‎, 04-25-2016 12:47 AM
    • Replies: 0
    • Views: 865
    04-25-2016, 12:47 AM Go to last post

+ Post New Thread
Page 1 of 91 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 51 ... LastLast

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 15 replies or 300 views
Hot thread with unread posts
More than 15 replies or 300 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts






Advertise on Talk Stats